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| | Abstract | | We have been seeking an efficient way to maximize the potential of the microtremor methods for shallow surveys. It is considered that a practical approach has been gained in the observation by the development of portable seismometers (Senna, 2006, 2012) and by the finding of the full usability of the data obtainable by a miniature array (radius less than 1 m), optionally together with a small irregular-shaped array (radius less than 10 m) consisting of three seismometers (Cho et al., 2013a). The current challenge is to further promote the efficiency in the data processing procedure. To address this problem, This study invented automatic-reading algorithms, and we test their algorithm by applying it to observed data to compare the results with those obtained with visual readings. Our method of observation and analysis is described in the following. |
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